Home / 107,571.29-148,292.75-71,211.80

Finding the Fourth Proportional to 107,571.29, 148,292.75 and 71,211.80

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Solution

The fourth proportional to 107,571.29, 148,292.75 and 71,211.80 is: 98,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,571.29 : 148,292.75 = 71,211.80 : x
  2. Step 2: Convert to fraction form
    107,571.29/148,292.75 = 71,211.80/x
  3. Step 3: Cross multiply
    107,571.29x = 148,292.75 × 71,211.80
  4. Step 4: Simplify right side
    107,571.29x = 10,560,194,203.21
  5. Step 5: Solve for x
    x = 10,560,194,203.21/107,571.29
  6. Step 6: Final answer
    x = 98,169.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.